My PMA 450A died

[ArtVandelay]

Not yet.  Be sure to check power and ground first before anything else.  Let's not replace things, just to be safe or to rule out.  If power and ground are present, then , as Mark said, it could be a seating issue.  

The problem is it may check out ok if just checking voltage, but it may not pass current. I had this problem with a Garmin 255 radio, avionics guy said it checked out ok, it wasn’t. It’s a $20 part, if it turns out its not the problem, keep the old one as a spare.

[Mscheuer]

 NJMac, I would hope to be more aware then to ever say our products just don’t fail, they do, but it is rare.

i am as concerned as you are with this unit. While I’m at the Gulf Shores AOPA fly-in, on Monday I’m going to get the design engineer to do a deep dive into this unit.

there are registers that are used to store errors, we are going to pull those and I’ll report.

please know that I totally believe that the unit failed to operate, it is my objective to determined what did happen.

Have a great weekend

Mark

[Baker Avionics]

3 hours ago, teejayevans said:

The problem is it may check out ok if just checking voltage, but it may not pass current. I had this problem with a Garmin 255 radio, avionics guy said it checked out ok, it wasn’t. It’s a $20 part, if it turns out its not the problem, keep the old one as a spare.

I totally understand and while understand the practice, with a Comm Radio it is different because of the amperage it pulls, however, with the PMA Audio panels, they are pretty much the best out there and do not pull much current in normal configuration.  I am not saying at all you are wrong, I just would not do that as a normal practice unless it happens again.  It is good thinking though.

[NJMac]

 NJMac, I would hope to be more aware then to ever say our products just don’t fail, they do, but it is rare.
i am as concerned as you are with this unit. While I’m at the Gulf Shores AOPA fly-in, on Monday I’m going to get the design engineer to do a deep dive into this unit.
there are registers that are used to store errors, we are going to pull those and I’ll report.
please know that I totally believe that the unit failed to operate, it is my objective to determined what did happen.
Have a great weekend
Mark

It's the weekend. No worries. Thanks

Sent from my SM-G930V using Tapatalk

[McMooney]

8 hours ago, Mscheuer said:

 NJMac, I would hope to be more aware then to ever say our products just don’t fail, they do, but it is rare.

i am as concerned as you are with this unit. While I’m at the Gulf Shores AOPA fly-in, on Monday I’m going to get the design engineer to do a deep dive into this unit.

there are registers that are used to store errors, we are going to pull those and I’ll report.

please know that I totally believe that the unit failed to operate, it is my objective to determined what did happen.

Have a great weekend

Mark

hey ship my pma8000 wiring harness before you go to gulf shores and have all the fun.

Edited October 27, 2018 by McMooney

[Mscheuer]

Too late, I am already having fun. But that doesn’t mean your harness might not be already on it’s way. We finish the harness within 5 working days but most of the time it’s quicker. Thanks for your order McMooney!

Edited October 27, 2018 by Mscheuer